ci(release): adds manual dispatch option (#48)

I can't figure out some of this semantic release stuff, so I'm adding a
manual trigger for releases via the `workflow_dispatch` event

Author: Tbhesswebber

.github/workflows/release.yml

@@ -6,6 +6,7 @@ on:
       - '[1-9].[x0-9].[x0-9]'
       - main
       - alpha
+  workflow_dispatch:
 
 permissions:
   contents: read # for checkout